package cn.icyzx.filter;


import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import cn.icyzx.util.StaticConstUtil;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @Author zk
 * @Date 2017/5/5.
 * @Email 2117251154@qq.com
 */
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
        if (!(request.getHeader("x-requested-with") != null
                && request.getHeader("x-requested-with").equalsIgnoreCase("XMLHttpRequest"))) {
            HttpSession session = request.getSession();
            if (session.getAttribute(StaticConstUtil.LOGIN_SIGN) == null) {
                response.sendRedirect("/login");
                return false;
            }
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
